Just wanted to share this. It's a perfect example of how things can go wrong in a helluva hurry.
I know this guy and he explained that when he was cutting one side of the hinge collapsed. He knew it wasn't going well so he left it. This tree was not in good shape and he knew that also.
Went back to the house had a cup of coffee, grabbed his little saw and the camera. What happened next he was not prepared for but thank God he wasn't any closer to that tree.
He's not a pro by any means but he cuts a lot of trees. He basically has been doing the same as XP slinger with cutting Ash on his own property and selling them to a local mill.